Apple Os Tiger Views

• Software

Tiger's longer gestation doesn't mean that the rate of change has slowed, however. Tiger includes updates that are at least twice as significant as any single past update. Mac OS X is now getting to the point where significant improvements require a larger time investment. As far as the core OS is concerned, most of the low-hanging fruit has been harvested. Now it's time for Apple to get down to the real work of improving Mac OS X.

Tiger also represents a milestone in Mac OS X's development process. Apple has promised developers that there will be no API disruption for the foreseeable future. Starting with Tiger, Apple will add new APIs to Mac OS X, but will not change any existing APIs in an incompatible way. This has not been the case during the first four years of Mac OS X's development, and Mac developers have often had to scramble to keep their applications running after each new major release.

It's tempting to say that Tiger marks childhood's end for Mac OS X, but I think that goes too far. A more accurate analogy is that Mac OS X versions 10.0 through 10.3 represent the fourth trimester for Apple's new baby mdash;a phrase used to describe the first three months of human life, during which the baby becomes accustomed to life outside the womb. As any new parent knows (yes, I am one of them), this is not an easy time of life, for the baby or for the parents.

Since Mac OS X is POSIX compliant, many software packages written for the * BSDs or Linux can be recompiled to run on it. Projects such as Fink, MacPorts and pkgsrc provide pre-compiled or pre-formatted packages. Since version 10.3, Mac OS X has included X11.app, Apple's version of the X Window System graphical interface for Unix applications, as an optional component during installation.[37] Up to and including Mac OS X v10.4 (Tiger), Apple's implementation was based on the X11 Licensed XFree86 4.3 and X11R6.6. All bundled versions of X11 feature a window manager which is similar to the Mac OS X look-and-feel and has fairly good integration with Mac OS X, also using the native Quartz rendering system. Earlier versions of Mac OS X (in which X11 has not been bundled) can also run X11 applications using XDarwin. With the introduction of version 10.5 Apple switched to the X.org variant of X11.[38]